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F09sess8 6s - IE/PSY 577 Session 8 3 Stages of Human...

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1 IE/PSY 577 Session 8 Human Information Processing and Psychophysical Methods 2 IE/PSY 577 Session 8 Human Information Processing The “Cognitive Revolution” occurred in psychology in the 1950s Widespread adoption of the human information processing approach Occurred around the same time as the founding of Human Factors as a field, and the rise of the approach parallels that of Human Factors 3 IE/PSY 577 Session 8 Human Information Processing Characterizes human as communication system Models depict flow of information through processing stages Theories can be developed that describe the way in which information pertaining to overt stimuli and responses is represented and processed by human and nonhuman organisms. 4 IE/PSY 577 Session 8 3 Stages of Human Information Processing PERCEPTION COGNITION ACTION S R 3 kinds of processing limitations at each stage: 1. Data-limited 2. Resource-limited 3. Structurally-limited 5 IE/PSY 577 Session 8 An Elaborated Model Sensory Information Pattern Organization & Recognition Response Activation Response Preparation Response Selection Decision Making Thought STM LTM Attention Feedback Output Input 6 IE/PSY 577 Session 8 A Model for Performance of Visual Information Processing Visual LTM Auditory LTM Limited Capacity Visual Form System Limited Capacity Acoustic Form System Response Selection Limited Capacity Translator Visual Symbols Array Response
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2 7 IE/PSY 577 Session 8 Stimulus Identification relevant = s i irrelevant = s j S j r k Identity Stimulus Identification relevant = sj Stimulus Element Stimulus Comparison ?
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